[Perl/perl5] 30d5a4: propose WARN_ONCE warning fix for backport, as sug...

[Tony Cook via perl5-changes]

  Branch: refs/heads/maint-votes
  Home:   https://github.com/Perl/perl5
  Commit: 30d5a4004b5194d5e2f58927a0e62a3db041ff7b
      
https://github.com/Perl/perl5/commit/30d5a4004b5194d5e2f58927a0e62a3db041ff7b
  Author: Tony Cook <t...@develop-help.com>
  Date:   2023-07-25 (Tue, 25 Jul 2023)

  Changed paths:
    M votes-5.36.xml
    A votes-5.38.xml

  Log Message:
  -----------
  propose WARN_ONCE warning fix for backport, as suggested